Tunnel in the sky
Age rating: Ages 14–17 · Young Adults
Age rating and Christian content guidance for parents.
First published 1955
A group of high school students are mysteriously transported to a distant planet and must survive on their own.
Concern Level
Mixed
Virtue Level
Thin
Concern Level
Mixed
Virtue Level
Thin
What is Dokilit?
Dokilit is an AI-powered content guide for Christian parents. We analyse books through the lens of faith and family, then show you the concerns, the virtues, and the conversation points that matter for your home.
Things to consider
Higher = more presentNo sexual content is present in this book.
There are instances of conflict and danger on the planet.
Mild profanity may appear in dialogue.
No blasphemous language is used.
Substance abuse is not a theme in this story.
The harsh conditions could imply despair.
The survival situations can be tense.
No occult or magical elements are featured.
This book does not feature LGBTQ+ themes.
The worldview is secular and emphasizes human ingenuity.
No negative portrayals of Christians or God are present.
Virtues to celebrate
Higher = stronger presenceCharacters demonstrate significant courage and resourcefulness.
Christian faith is not a theme in this story.
The students develop bonds of camaraderie.
No themes of grace or repentance are explored.
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